Patents by Inventor Helmut Winchenbach

Helmut Winchenbach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for the production of low tension moulded parts
    Patent number: 4908216
    Abstract: A pacified mass is hardened under controlled conditions to produce low tension moulded parts (4) of duroplasts, the shringkage being compensated for by the movement of a lower mould part (2) and/or an upper mould part (3) to follow the mass.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: March 13, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Dullings, Werner Kloker, Dieter Freitag, Holger Lusgen, Helmut Schmid, Helmut Winchenbach